The procedure took place in Rio de Janeiro and was conducted by Dr.
Marco Aurelio Sousa under the supervision of Brazilian MMA Athletic
Commission medical director Marcio Tannure. According to the
report, the surgery was successful. Rehabilitation is expected to
take six months.

Nogueira last fought at UFC Fight Night in Abu Dhabi on April 11,
when he was knocked out by Roy Nelson
3:37 into the opening round of their featured heavyweight
encounter. Shortly thereafter, the Brazilian told
MMAFighting.com that he tore his ACL in training three days
prior to facing “Big Country.”

Nogueira also suffered a partial tear in his lateral collateral
ligament leading up to the fight, but no surgery was necessary for
that injury, according to Globo.com.